This is for product dev team though, not ops. Don't get me wrong, it's easy to plan works that take less than 7 work days or more than 14 work days, assuming th

This is for product dev team though, not ops. Don't get me wrong, it's easy to plan works that take less than 7 work days or more than 14 work days, assuming the sprint is 10 work days. Planning one that's near to 9-11 work days is the hard part.